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https://issues.apache.org/jira/browse/IMPALA-8083?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-8083:
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Labels: performance (was: )
> Materialize sub parts of query that is used in multiple times in a query
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>
> Key: IMPALA-8083
> URL: https://issues.apache.org/jira/browse/IMPALA-8083
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend, Frontend
> Reporter: Janaki Lahorani
> Priority: Major
> Labels: performance
>
> When the same bit of processed data is used in multiple places (within the
> query to begin with), it should be materialized. Some use cases are grouping
> set queries where one group computation can be derived from other group
> computation, with clause, data mining like queries and graph processing
> queries. To begin with, the materialized data could be scoped for the query.
> But this has the potential to grow to a group of queries.
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